Nathan t



No. 105,913. PATENTE'D AUG. 2, 187( N. T. comm.

PUMP VALVE.

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The Schedule referred to in these Letters Patent and making of the m.

1 -I,NArHXNT.001mm,oiKnightstowminthecounty of "Henry and State of Indiana, have invented certain Impi'ovements in Pump-Valves, 'of which the follow- .ing is a specification.

' Nature and Objeets of the Invention, My invention relates to the lower valve of pumps, or the drop-bucket valve in woodeupumps; and

' It consists in ooiistructin' the valve-bucket of'cast iron, in such manner that it willrest by'its owngra'vity onthe end of the tubing inserted in""the"botto'm end oi the upperstock, theunder sideof the valvehaving a packing of leather, to make it water-tight on its seat,'the object being to make the valve more easily removable for repairs, and, at the same time, more durable and less liable to 'get out of orderthan either I the old drop-bucket valve, or the more modern construetion'of securing the valvedirectly to the end of the tubingr, I

' Description-of the Accmpariying ll ra uainfp Figure 1 is a trausyerse vertical section through the lower end of a wooden pump-stock, and the upper end of the inserted tubing, and the drop-bucket, embodying my invention. p l i e Figure 2 is a bottom view of the drop-bucket valve. i.

' 4 General Description.

TA is the pump-stock, and

B, the tubing, inserted in the lower end of the stookA.

One common manner of constructing the lower -'val\"ehas been to attach the valve to thetop of a wooden bucket, to be dropped into the stock, the stock being made with a tapering bore in the part-where the valve rests, and the drop-bucket of corresponding shape, and having a groove around it toreceivepackthus be'made water-tight;

ing, so that the bucket would wedge into thebore, and

' A serious objeetion to thismannerof putting in the valve is, that it isexceedingly. -diflicult to remove after being in the fiiimp any length of time. Another common method has been to attach the valve directly to the upper end of the tubinginserted in the lower end of the pump-stock. The objection to this is that, when the valve gets out of order, ,it becomes necessary to draw. outthe pump to repair it. My invention consists-in constructing the. valvebucket" 0 of cast iron, of suflicientweightto rest on its seat withoutdanger of floating. v A leather or rubber packing-ring, D; is attached to'the bottoin of the bucket to form a water-tightjoint with the end .of the tubing B, as shown.

The bucket is provided urith a halo, F,.by which Ltd:-

lifi; it out of thepump. Thepacking-ring 'D and valve E are attached to the bucket by means ot nails driven into woodenpins,'G, inserted in holes drilled therein, whereby I am. enabled to remove them for repairs as conveniently as from wooden buckets. The pump-stock is bored of uniform size, and the valve-bucketis made to .fit so loosely that it ;will drop freely into place. When it becomes necessary to remove the bucket for repairs, this is easily accomplished,

. as no greater forceis required than simply to lift the "weight of the bucket.

I claimas my invention-r The valve bucke't O, furnished. with the packing. D, andwooden pins G, and. arranged to form a water-. tigbtjoint-by resting loosely, by its own gravity, on a seat formed by the upper end of the tubing B, substantially as and for the purpose set forth.

' NATHAN T. ,QOFFIN. Witnesses:

DAN. W. Kamehame- Q. Emvnsw. 

